Gael wilhelm muchall



(No Model.)

o. W. MUCHALL. GAS LIGHTING DEVIGE.

No. 524,449. PatentedAug. 14, 1894.

UNITED STATES PATENT OFFICE.

CARL WILHELM MUCHALL, OF WIESBADEN, ASSIGNOR TO THE DEUTSCHE GASGLHLICHT-ACTIENGESELLSCHAET, OF BERLIN, GERMANY.

GAS-LIGHTING DEVICE.

SPECIFICATION forming part of Letters Iatent N o. 524,449, dated August 14, 1894. `Application filed January 6, 1894:. Serial No. 4961011. (No model.) Patented in England December 15,1893,No. 24,192.

To @ZZ whom it may concern:

Be it known that I, CARL WILHELM MUCH- ALL, a subject of the King of Prussia, German Emperor, and a resident of Wiesbaden, in the Province of Hesse-Nassau, Kingdom of Prussia, German Empire, have invented certain new and useful Improvements `in Devices for Lighting Gas-Lanterns, (for which I have a patent in Great Britain, No. 24,192, dated December l5, 1893,) of which the following is an exact specification.

This invention refers to devices, by means of which lanterns or street-lamps may be lighted without necessitating the opening of the casing inclosing or surrounding the burner proper, and my improvements in such devices relate to the arrangement of a horizontal or but very slightly inclined tube in thetop of the casing of the lantern or street-lamp, and in providing the inner end of said tube with an enlargement formed best by an inverted spoon or funnel and being situated in the space above the burner or shortly above a chimney properorachi mney-like part adapted to receive as well as conduct the fresh gas issuing from the burner, before the latter has been lighted. Y

Before entering into the details of the construction, I beg to state, that I am well aware of the existence of devices in which the desired eit'ect has been sought bya tube, which, however, was arranged vertically or Very nearly so, and which, further, did not possess any enlargement or an equivalent part, by the aid of which the lighting-gas, or a mixture of this latter with air, could be connected and conducted into the ignition-tube, as Well as prevented from entering the remaining inner space of the casing.

In order to make my invention more clear, I refer to the accompanying drawings, in which similar letters denote similar parts throughout the dierent views, and in which-` Figure l is a vertical section through the lamp of a street-lantern, provided with my improved lighting-device, and Fig. 2 is an enlarged view of the ignition-tube proper.

The burner shown in this lamp is intended for the so-called gas-glow-light, in which a hollow cylinder consisting of special mineralsubstances is brought to intense glowing by a very hot and non-luminous llame, as is produced, for instance, bya burning mixture of gas and air. The ignition-tube may be used, however, also for other constructions of burners, and I have preferred to show the same in .Connection with a gas-glowlamp, as the ignition tube is most suitable just for lamps of this kind. p

The construction proper is as follows: The casing ct inclosing the burner ZJ with its glowing-body cand with the chimney cl surrounding the latter is provided in its top a with the tube e, the position of which is but a very slightly inclined one, or which, in other words, extends in the direction to the top of the chimney cl. The inner end of tube e carries the spoon-'like enlargement c', which may be adapted to be displaced telescopically on tube e, or which may be movably secured to the latter by means of a hinge e2, so that in either t case the chimney may be freed from part e for being enabled to be taken on? the burner, if the lamp shall be cleaned, or a fresh glowing-body shall be set in. The same effect may be attained, however, by arranging tube e displaceable in the lantern-top a and by pro- Viding it with two shoulders or other proj ections for the purpose of limiting its movements in either direction. If, now, oock f of the gas-conduit g is opened, the gas entering the cylinder mixes with air within the latter;

this" mixture, when leaving the top of the chimney, is caught by the inverted spoonlike end or enlargement e', and is led then by tube e to the outer orifice of the latter. This oriiice is narrowed byatongue e3 for the purpose of causing a slight compression of the mixture within tube e, and of preventing wind and rain from entering the latter.

The lighting proper is eiected by bringing the flame of a common lighting-rod quite near to the outer orice of tube c3, so that the mixture of gas and air, which is easily inflammable and flows upward within the tube e with but slight velocity, is ignited; this ignition then proceeds inward and is transferred to the mixture Within chimney d, so that finally also the burner is lighted. v

I here think it necessary to expressly point out the great importance of the tube e with regard to its slight inclination by making the inclination but very slight, I prevent the mix- IOO lture from escaping too quickly out of the tube and I, further, hinder the latter itself from exerting too strong a draft on the burneriam'e, so that the latter is lighted with perfect'security, and is kept burning with continual steadiness results, never attained heretofore by other constructions resting on Vthe above principle.

I wish itto be understood, that I` do not confine myself to the spoon-like configuration of the part e', but that I mayuse also other confi gu rations, provided the latter be also adapted to catch up the gases rising from the burner; such con figuration is represented,for instance, by an inverted funnel or hopper, the diameter of which is somewhat like that of the chimney.

Having thus fully described the nature of this invention, what Idesire to secure by Letters Patent of the United States is- 1. A gas-lantern With chimney, having a horizontal o'r slightly inclined tube e held by the top of the casing, and extending from the outside of the latter down to the space above the chimney, said tube having secured to its inner end an inverted casing e by means of a hinge e2, said casin g being of spoon-like configuration and having its opening a short distance above the chimney, for the purpose as described.

2. In a gaslantern with a Bunsen-burner and with a glowing-body surrounded by a chimney, ahorizontalor slightly inclined tube eV held by the top a of the casing and extending from the outside of the latter down to the specification in the presence of the subscribing Witnesses.

CARL WILHELM MUCHALL.

Witnesses:

PAUL SCHUEGLER,

J. AURADI, FRANK H. MASON. 

